Joomla Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2010-3712
Cross-site scripting (XSS) vulnerability in Joomla 1.5.x before 1.5.21 and 1.6.x before 1.6.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving quotmultiple encoded entitiesquot as demonstrated by the query string to index.php in the com_weblinks or com_content component.